From 10db5bccc390e8e4bd9fcd1fbd4f1b23f271a405 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 13 Apr 2020 10:20:30 +0200
Subject: [PATCH] ALSA: hda: Honor PM disablement in PM freeze and thaw_noirq ops
Git-commit: 10db5bccc390e8e4bd9fcd1fbd4f1b23f271a405
Patch-mainline: v5.7-rc2
References: bsc#1051510
freeze_noirq and thaw_noirq need to check the PM availability like
other PM ops. There are cases where the device got disabled due to
the error, and the PM operation should be ignored for that.
Fixes: 3e6db33aaf1d ("ALSA: hda - Set SKL+ hda controller power at freeze() and thaw()")
Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=207043
Link: https://lore.kernel.org/r/20200413082034.25166-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/pci/hda/hda_intel.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index a2e811375750..f41d8b7864c1 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1071,6 +1071,8 @@ static int azx_freeze_noirq(struct device *dev)
struct azx *chip = card->private_data;
struct pci_dev *pci = to_pci_dev(dev);
+ if (!azx_is_pm_ready(card))
+ return 0;
if (chip->driver_type == AZX_DRIVER_SKL)
pci_set_power_state(pci, PCI_D3hot);
@@ -1083,6 +1085,8 @@ static int azx_thaw_noirq(struct device *dev)
struct azx *chip = card->private_data;
struct pci_dev *pci = to_pci_dev(dev);
+ if (!azx_is_pm_ready(card))
+ return 0;
if (chip->driver_type == AZX_DRIVER_SKL)
pci_set_power_state(pci, PCI_D0);
--
2.16.4